The EOW has started an investigation into the complaint of black marketing of tickets related to the Coldplay concert. The EOW has summoned Ashish Hemrajani, CEO of BookMyShow's parent company Big Tree Entertainment Pvt Ltd, and the company's technical head. The EOW has sent summons to both of them to appear before the investigating officer on Saturday and record their statements. Mumbai Police said that advocate Amit Vyas had complained to the EOW about the alleged black marketing of Coldplay concert tickets. In the complaint, Vyas has alleged that BookMyShow used unethical practices. Genuine fans were prevented from buying tickets during the official sale that began on September 22. The  event is to be held in Mumbai in January